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PCE
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Search for IPC and CPC classification codes or keywords
CPC Subgroup
H04N 19/117

Filters, e.g. for pre-processing or post-processing (sub-band filter banks H04N19/635)

Full Title

Methods or arrangements for coding, decoding, compressing or decompressing digital video signals > using adaptive coding > characterised by the element, parameter or selection affected or controlled by the adaptive coding > Filters, e.g. for pre-processing or post-processing (sub-band filter banks H04N19/635)